Rotary pasting device



Jan 6, 1931.

H. A. w. WOOD 1,787,463

RY PAS'I'ING DEVICE w zirl zeay "1. Y A. WJJEE WOOD, OF NEW YORK, N. Y.,ASSIG-NOB T WOOD NEWSPAP 1 BSA- manna CQRPDEATIUN, OF NEW YORK, 31'. Y.,A CORPORATION 05 VIEGIIM ROTARY TASTING: DEVICE Application filedJanuary 26, 1927, Serial No. 163,654. Renewed Play 2, 1.928.

This invention relates to an improvement over the pasting mechanismshown and described in my prior application for patent Serial No.42,061, filed July 7, 1925, on a a Web change device.

The principal object of this invention is to provide a pasting ordeflecting device for the web which deflects the web against a fresh webroll at the time of pasting, as in in my above mentioned application,but in such form that it will ofier no resistance to the running of theweb and therefore will not cause any strain thereon.

This invention can be used with the type of pasting device set forth inthe above mentioned application and is intended for such useparticularly. But it is to be understood that it is merely one featurethereof which can be used with other forms of web pasting mechanism.Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is aside view, partially diagrammatic, of a web change device such as shownin my above mentioned application with a preferred embodiment of thisinvention applied thereto; and

Fig. 2 is a similar view showingthe parts 4 in another position.

In the web change mechanism shown in my above identified application, adeflector is used in the form of a brush which is located in stationaryposition apart of the time in contact with the running web. Then thebrush is lowered into pasting position and deflects the running web intocontact with the fresh web roll. This, together with the usual provisionof the pasted area on the to fresh roll, performs the operation ofattachin the new web to the end of the expiring we b, the tail of theexpiring web being cut away as is well understood.

Referring now to the drawings it will be seen that l have illustratedseveral features shown in my above mentioned application. It will beunderstood that the running web roll A, the fresh web roll B, and thethird web roll C which is to become the next fresh roll, are mounted ona reel 58 which turns about a central shaft 50. The running web roll Ain Fig. l is delivering the web W to the press over a spring-pressedidle guide roll 51 and a web control roll 52 operated positively fromthe press. The web is pro- 5- pelled by a series of feeding belts 53.The web travels uniformly and asses into contact with a deflector in thefiirm of a rotary brush 5-1. This figure shows the normal path of thisweb during the run, the brush constituting a guide for it at this time.

The mechanism above described is connected with and operated by thepress. For example, the shaft of the web control roll 52 is connectedwith the main shaft of the press and operated continuously at such arate that its surface rotates at web speed. The other end of the shaftis provided with a sprocket wheel which drives a chain connected with asprocket wheel on a shaft 61 for driving the latter. On this shaft 61are pulleys 63 on which are the feeding belts 53. The shaft 61 also, bymeans of a sprocket wheel, drives another chain 64 which in turn drivessprocket wheels 67 on two shafts 66. This chain 64 also passes over asprocket 68 mounted on the shaft of the rotary brush 54. Two idlers 69engage the chain 64 and keep it wrapped well around the sprocket 68.These idlers are located on two links 70 which carry the brush shaft.They are pivotally connected with an arm 94.

The shaft 61 is provided with means for rotating a cam shaft 81 whenconnected with it by manual means comprising a handle, not shown.

On this shaft 81 are two cams 88 each having a groove 89 provided with adepression 90. In each cam groove operates a roller 91 on an arm 92fixed on a shaft 93 and having an arm 94 projecting therefrom at eachend. It is on these arms 94 that the links 70 are pivoted.

Operation This device operates in substantially the same way as my aboveidentified a plication, or at least it is preferred that it used inconnection with the same kind of a machine. The normal position of thepartsis shown in Fig. 1 in which the web is being taken off the -webroll A and in which that roll has been reduced in diameter from fullsize to that indicated. The cam 88 is held stationary and keeps therotary deflector 54 as shown in that figure during that period. Now whenthe roll gets a little smaller as shown in Fig. 2 the operating handle,not illustrated herein, is lowered and the shaft 81 starts to rotate andcompletes an entire rotation of the shaft 81. The roller.91, comin tothe lower part of the cam, as shown in ig. 2, will depress the arms 94and take the frame 70 downward with the brush 5 h This brush has beenrotating all the time at web speed so as not to offer any resistance tothe web or cause an strain upon it. The same conditions prevail when itis lowered for the pasting operation which takes place in the samemanner as de scribed in my above mentioned application. The brush 54 isin contact with the web and the web in contact withthe roll B during apart of one press operation. This applies the free end of the new webonthe roll B to the running web A. This running web is later cut oil' bymeans not forming a part of this invention. The reel 58 is rotatedaround so that the fresh roll B will eventually occupy the position A.The tapes are moved back and forth by resting against the rolls inaccordance with their positions.

This constitutes a simple means for eliminating the slightest strain onthe web even at he highest speed. It makes the pasting operation morecertain and permits an increase of speed thereof.

Although I have illustrated and described only a single form of theinvention, and explained it as used only with the paster shown 4 in myprior application, I am aware of the fact that modifications can be madetherein, and that it can be applied to other forms of pasters, by anyperson skilled in the art without departing from the scope of theinvention as expressed in the claims.

Therefore, I do not wish to be limited to all the details ofconstruction herein shown and described, but what I do claim is 1. In adeflecting device for a web change "machine, the combination, with meansfor supporting a running roll and a fresh roll, of a rotary deflector,means for rotating the deflector in contact with the web at web speed,and means for moving the deflector to bring the web running thereover tothe pasting point on the fresh roll.

2. In a web change device, the combination with means for supporting afresh web Y running 'roll to the press, of a rotatable brush.

located in position to engage the web, means for rotating said brush ata surface speed equal to'the speed of the running web, and means formoving the brush bodily toward the fresh web roll for perfog the pasting0 eration.

4. in a web deflecting device for a web change machine, the combinationwith means for supporting the web rolls, of a rota brush located inposition on the side of t e web opposite the fresh roll, a pair ofwheels at opposite sides of the brush adapted to retate freely, a wheelon the brush shaft, means for supporting shafts for the brush and thewheels, a chain or belt passing under said wheels and over the brushwheel for rotating the brush at web speed, and means for moving thesupport for the brush and wheels bofiily to apply the web to the freshweb ro Y 5. In a web change device, the combination with means forguiding a web from the running roll, of a rotatable soft cylindricalbody located in position to engage the web, and means for movin saidbody toward and into contact with the beyond that at which the web fromthe running roll engages the fresh roll for performing the pastingoperation.

6. In web change device, the combination with means for guiding awebfrom the running roll of a rotatable positively driven brush locatedin position to and engaging the web, and means for moving said brushtoward the fresh web roll for performing the pasting operation. v

7. In a web change device, the combination with means for guiding a webfrom the running roll, of a positively driven rotatable soft cylindricalbody located in position to and engaging the web, and means for movinsaid body toward the fresh web roll forper ormesh web roll at a point 9.In a web change device the combination withmeans for a web-from arunning roll of a rotatable soft cylindrical body engaging the web atall times, and means 5 for moyin said body toward the fresh web roll,and orcing the web gently against the fresh roll for performing thepasting operation.

In testimony whereof I have hereunto- 10 afixed my signature.

HENRY A. WISE WOOD.

